Washboard road harrow



June 7, 1932.

A. M. DEVEREUX WASHBOARD ROAD HARROW Filed Aug. 8, 1929 Patented June 7, 1932 UNITED STATES ARTHUR M. DEVEREUX, OF GASTIN'E, MAINE WASHBOAR-D ROAD HARROW Application led August 8, 1929. Serial No. 384,318.

:o In the drawing forming part of this application, like numerals of reference indicate similar parts in the various views, and wherein:

Figure 1 is a plan view of the washboard i road harrow.

Figure 2 is a side view of the toothed oblique angular sectional scraper blade, or cutter 1.

Figure 3 is a side view of the sectional scraper blade, or cutter 3, having a smooth y, bottom edge.

Figure 4 is a side view of a smoothing plate 4.

Figure 5 is an end view of a smoothing plate 4.

Figure 6 is a side view of the bars 5. Figure 7 is a side view of the angle iron 13. Figure 8 is a side view ofthe angle iron 14. Figure 9 is a side view of the angle iron 1.5. Referring to the drawing in det-ail. This :1a invention consists of a metal washboard road liarrow of the flexible drag type, as is shown in the plan annexed hereto.

Figure 1 is a top View of the washboard road harrow. It consists of opposed oblique 115 angular scraper blades 1 and 2, and one or more right angle scraper blades 3, all extending across the entire width of the Washboaid road liairow. Each scraper blade 1, 2 and 3 is made in sections bolted together loosely by means of machine bolts 6, to allow of conformity to the crowning, or depressions of the road. The scraper blade 1 collects and by its angular position removes all small rocks and other 5 small obstructions to the side of the road.

Scraper blades 1 and 2 on opposed oblique angles span over the ridges and are toothed on their lower edges, they cut the tous olf of the ridges and deposit the earth then released into the hollows between the ridges. Scraper blade l moves the released earth laterally toward the side of the road.

Scraper blade 2 cuts the earth from the tops of the ridges which may remain after the passage of scraper blade 1 and also moves lthe earth laterally towards the center of the road.

Scraper blade 3 is straight across the washboard road harrow parallel with the washboard ridges, it does not have teeth, so issmooth along its bottom edge. The function of scraper blade 3 is to distribute the earth cut from the tops of the ridges by the teeth of the scraper blades l and 2 into the hollows between the ridges and evenly along the road Y as the washboard road harrow advances.

Therea-r ends of the bars 5 are fastened loosely with machine bolts 7 to the smoothing plates 4, which follow the cutters l, 2 and 3.

The smoothing plates 4 press down the earth distributed by the scraper blades 1, 2 and 3 to be smooth and hard.

Tow lines 8 made of rods, rope or chains, joined at their forward end into a metal ring or shackle 10, as it is desired to use into which f may be fastened a tow chain Vor tow rope leading to and fastening to the rear end of an auto truck or other vehicle, are provided for towing purposes, or when it is desired to raise the front end of the Washboard road harrow f over plank or other surfaces, which itis de sired not to injure by contact with the scraper blades 1, 2 and 3. The tow lines 8 are fastened to the bars 5, with shackles or machine bolts l1.

Figure 2 is a side view of the toothedy oblique angular sectional scraper blade or cutter 1, showing the toothed sections and bolt holes for machine bolts 6 and 12.

Figure 3 is a side view of the sectional scraper blade or cutter 3, having a smooth bottom edge, showing the sections and bolt holes for machine bolts 6 and 12. y

' Figure 4 is a side view of the smoothing plate 4 showing beveled front bottom edge to cause the smoothing plates 4 to ride over I and .press Adown the earth distributed by the scraper blades 1,- 2 and 3 and not to push it ahead. One half inch spaces 9 (Fig. l) are to admit of the bending of the smoothing plates 4 to conform to the crown or depreswith the accompanying drawing on a scale of sion of the road and the surface of the ground.

In this Figure 4 side view of the smoothing plate 4, is shown one of its two ears. These ears, have elongated vertical holes or slots, for the machine bolts 7, with which the smoothing plates 4 are fastened loosely to the rear end of the bars 5. These elongated vertical holes or slots in the ears ofthe smoothing plates 4 also serve to permit the smoothing plates 4 to move up and down while passing along the road. When it is desiredto raise the front end of the washboard road harrow to admit of transporting as explained smoothing plates 4 are fastened loosely to the rear end of the bars 5. p

Figure 6 is a side view of the bars 5, with bolt holes for the machine bolts 7 11 and 12.

Bars 5 are a plurality of flat pieces of metal on edge, parallel to each other and extending longitudinally along the top of the washboard road harrow. The function of these bars 5 is to serve as stieners or backbones, for the various sections making up the scraper blades 1, 2 and 3.

Figure 7 is a side view of one angle iron 13 at the proper angle, with bolt holes for the machine bolts 12. The angle irons 13 are fastened to the rear sideof the scraper blade 1 with machine bolts 12 and to the side of the bars 5 with machine bolts 12.

Figure 8 is a side view of one angle iron 14 at the proper angle, with bolt holes for machine bolts 12. The angle irons 14 are fastened to the rear side of the scraper blade 2 with machine bolts 12 and to the side of the bars 5with machine bolts 12.

Figure 9 is a side view of one angle iron 15 at the proper angle, with bolt holes for machine bolts 12. The angle'ironsl are fastened to the rear side of thescraper blade 3 following specic and distinct claims as my 4 invention or' improvement.

I claim:

1. A washboard road harrow of the flexible drag type comprising a plurality of scrap-- er blades each composed of a plurality of loosely connected sections, said blades being angularly disposed with respect to each other, two of said blades having a toothed lower edge and being angularly dispo-sed with respect to the line of draft and one of said blades having a smooth lower edge and being transversely disposed with respect to the line lof draft; a plurality of longitudinally extending parallel bars connected to said blades; draft means connected to the forward ends of said bars; and a plurality of smoothwith machine bolts 12 and to the side of the v bars 5 with machine bolts 12.

The dimensions and weights of the various parts of this washboard road harrow may be variedby the use to which it is to be put and the -work it is to d0. v From the foregoing description, together earth and other material evenly, whichlevel-s sor 

